A BBB-rated corporate bond has a yield to maturity of 10.5 %. A U.S. treasury security has a yield to maturity of 8.8 %. These yields are quoted as APRs with semiannual compounding. Both bonds pay semi-annual coupons at a rate of 8.9 % and have five years to maturity.     

a. What is the price (expressed as a percentage of the face value) of the treasury bond? 

b. What is the price (expressed as a percentage of the face value) of the BBB-rated corporate bond? 

c. What is the credit spread on the BBB bonds?